Life is hard enough without having to decipher everything. Each week, Marketplace Money brings you a word or a phrase that has bubbled to the top of the news. For instance - &quot;Negative Amortization.&quot; You hear it, you see it, but do you really know it?

British police stepped up their anti-terrorist operations in London. Today officers shot one man dead, arrested another and conducted three raids around the capital. Reports from Birmingham say a suspect with a suitcase full of explosives has been arrested. When looking for the roots of radicalism, experts often cite economic distress as a factor. After the deadly attacks in London two weeks ago, police were led to the city of Leeds. Marketplace's Steven Beard went there looking for a connection.

900 union delegates from around the country gather in Chicago next week. They'll be electing leaders for the AFL-CIO. President John Sweeney is bucking for another five year term. But these appear to be dark days for the union movement. Membership dropping, political clout slipping - and now: A deep split among the AFL-CIO's member unions threatens to tear it apart. Marketplace's John Dimsdale reports.

After the tsunami devastated Southeast Asia, many sympathetic Americans reached into their pocketbooks to help. Others donated their time and labor. Call them 'volun-tourists.' Reporter Miranda Kennedy with tales of do-gooder turf wars in Thailand.